DescriptionIf you are looking for a professional concrete anchor, then your research is over here. That's because our product can meet your need. Adopted of steel material, practical and durable for long time use, not easy to get deformed and bring you much convenience.Features-Color:As Shown -Material:Steel -Size:4.70X1.30X1.30cm/1.85X0.51X0.51in - The concrete knurled drop in anchors are made with steel materials, durable and can be used for long time. - Can be used with bolts, machine screws and threaded rod (not included) to anchor fixtures to concrete and other materials. - Enough quantity for you to use for a long time, satisfying your long term use requirements. - Easy to use, drill a hole, then insert the drop-in anchor into the drilled hole, fix the drop in to the concrete with bolts or machine screws (not included). - Stable characteristics, high performance and in great reliability, simple, easy to install.